NOW TO THE LATEst ON THE Mysterious death by cyanide poisoning of a prominent pittsburgh doctor. Investigators serging the home she shared with her husband, also a doctor, hauling off evidence. Gio benitez with the details. Reporter: The investigation into the death of prominent pittsburgh doctor autumn klein focuses on her home. Over the weekend, the fbi and homicide defectives could be seen removing bags of evidence from her house along with three vacuum cleaners, two cars. Preconception counseling is extremely important. Reporter: She was the chief of women's neurology at the university of pittsburgh medical center and the mother of a 6-year-old child. Until she suddenly died late last month. She had toxic levels of cyanide in her system. They're awaiting final lab results. Laboratory tests don't come back in seconds or minutes. Reporter: This morning, klein's husband, dr. Robert ferrante has hired world-renowned pathologist cyril wecht to conduct his own investigation. He points out some people use cyanide to kill themselves. This is not a common way of suicide, though 70% of cyanide deaths are suicides. Reporter: Klein's parents tell abc news they don't believe their daughter could or would have taken her own life. Adding to the mystery this morning, klein was reportedly cremated within a week of her death. Something experts say could make this baffling case even more difficult to solve. For "good morning america," gio benitez, abc news, new york.

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